|   | 
                
                                  
                    | Engineering Materials - Lightspan | 
                    Optical Gels | 
                    LS3-3354 | 
                    Platinum | 
                    Trans | 
                    High purity, optically clear, soft silicone gel. | 
                     | 
                  
                                  
                    | Engineering Materials - Lightspan | 
                    Optical Adhesive | 
                    LS1-6946 | 
                    Platinum Addition | 
                    Clear | 
                    Improved adhesion Two-part, optically clear silicone. R.I. 1.46 | 
                     | 
                  
                                  
                    | Engineering Materials - General Purpose | 
                    Primer | 
                    SP-124 | 
                     | 
                    Trans | 
                    One-component primer in VM&P Naphtha use with condensation cured systems Air-drying | 
                     | 
                  
                                  
                    | Engineering Materials - Lightspan | 
                    Optical Primers | 
                    LS-3200-10 | 
                     | 
                    Clear | 
                    Optical grade adhesion promoter,  non-flammable non-toxic optical grade solvent | 
                     | 
                  
                                  
                    | Engineering Materials - Lightspan | 
                    Optical Primers | 
                    LS1-3200 | 
                    Hydrolysis | 
                    Trans | 
                    Specially formulated, optical primer for optical platinum-cured systems | 
                     | 
                  
                                  
                    | Engineering Materials - Lightspan | 
                    Optical Primers | 
                    LS2-3200 | 
                    Hydrolysis | 
                    Trans | 
                    Specially formulated, optical primer for optical platinum-cured systems | 
                     | 
                  
                                  
                    | Engineering Materials - Lightspan | 
                    Optical Primers | 
                    LS3-3200 | 
                    Hydrolysis | 
                    Trans | 
                    Specially formulated, optical primer for optical platinum-cured systems | 
                     | 
                  
                                  
                    | Engineering Materials - Lightspan | 
                    Transparent Thixotropic Gels | 
                    LS-1246-10 | 
                     | 
                    Clear | 
                    A thixotropic, one-part, ultra-clear optical gel. Flows under pressure. R.I. 1.46 | 
                     | 
                  
                                  
                    | Engineering Materials - Space | 
                    SCV Ultra Low Outgassing | 
                    SCV-2590 | 
                     | 
                    Trans | 
                    Two-part, low viscosity, clear silicone system | 
                     | 
                  
                                  
                    | Engineering Materials - Space | 
                    SCV Ultra Low Outgassing | 
                    SCV1-2590 | 
                     | 
                    Trans | 
                    Two-part, optically clear silicone system. Low viscosity | 
                     |